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03.17 Cambridge Storm Drain Contract Change Order 2Contract Change Order No. 2; Bid No. 178-32, D-171; Cambridge Storm Drain Project. 2. SUMMARY This Contract Change Order authorizes contract payment for extra work at the agreed cost for the Cambridge Storm Drain Project in the amount of $109, 581. 13. RECOMMENDED ACTION Approve Contract Change Order No. 2 in the amount of $109,581 to Garrett J Gentry Engineering for the additional work. 4. FISCAL IMPACT The total expenditure for this change order is $109,581 and will be funded in the Cambridge Storm Drain Project (20323) through Sanitation and Sewer (220). 5. STRATEGIC PLAN GOAL(S) 1. Provide for a safe community - b. Provide and maintain the infrastructure necessary to ensure the safety of the public 4. Provide outstanding public service — b. Provide facilities and services to meet customer expectations. ITEM 3.1 -1 1 10/09/18 6. GENERAL PLAN IMPLEMENTATION Infrastructure Element Goal 3.0: Ensure adequate maintenance of public rights -of -way to enhance public safety and improve circulation. Policy 3.1: Continue to maintain and repair sidewalks and pavement surfaces on public rights - of -way. 7. DISCUSSION and BACKGROUND The City Council awarded the Cambridge Storm Drain Project on May 8, 2018, to Garrett J Gentry Engineering. Due to an unforeseen utility conflict with an AT&T utility duct bank, the project plans were modified to accommodate and protect the AT&T facility in place. This unexpected change to our storm drain alignment has resulted in a loss of production and additional work costs. The staff has contacted AT&T regarding the utility conflict and has asked that they reimburse the City for this extra cost to protect the AT&T facility in place. The City sent AT&T utility notifications prior to the start of the project and they did not indicate any conflict with the City's proposed storm drain alignment. AT&T's actual facility location in the field is different from what was shown on the utility map, so the City's extra cost incurred by revising the construction plan and change order should be reimbursed by AT&T per the franchise agreement. The original contract amount was $1,064,925. This Contract Change Order represents a 10.29% increase from the original contract amount bringing the final contract amount to $1,174,506. 8. ATTACHMENTS • Contract Change Order No. 2 ITEM 2 10/9/18 City of t4 �� PC Public Works Department CONTRACT CHANGE ORDER NO.2 PROJECT: Cambridge Storm Drain Project PROJECT NO: 178J21D471 CONTRACTOR: ca..e. I V...,... u_a___�__r__ - - ---- - - uste: 8r27iW 18 You we hereby directed to make the herein described changes Gam the plans and specifications or do the following described work not included in the plans and specifcatons on this contract NOTE: This change order is ant eQative until approved by the City Engineer. Description ofwark to he done, an estimate of quanHlies, and prices to be paid Segregate bctwmn additional work at the hxntmct price, agreed price and force account Unless otherwise stated, rates farremal of equipment cover only such amen equipment is actually used and no allowance will he made for idie time- s following work is added or deleted, as applicable, from the contraetus a change ordain aceordancewith the provisions of Section 3 of the contract specifications, The method ofpayment shall be as described far each item of this change order. The following work is added or deleted, m applicable, Sum the contract as a change order in acconlaneewith the p:ovisitins orSection 3 ufthe crnttaet specification The method ofpoymenl shall be m described for each item afthis change arder DESCRIPTION UNIT UNIT ORIGINAL ORIGINAL FINAL QUANTITY Increase (Decrease) OFWORK PRICE Dr.SCRIPTIO\ QUANTITY AMOUNT QUANTITY AMOUNT UANTITY AMOUNT Loss of production caste due to AT&T duct bank Existing location of AT&T I duct bank prevented Garret J Gentry §60,000 00 LS 1 S60,00000 Corm utilising a trench shield See1 S60,000 00 1 $60,000 00 attached letter ddidanal Manhaloa required as - 2 ceded to avoid the AT&T dun bank S16,52700 EA 0 SI6,527,00 3 316.52700 3, S49,581D0 3 Fl Additional Calendar Da 21 DAYS - PROJECT TOTAL: $109 981 AO Original Contract Amount: S1,064,925.00 Original Contract Time: 60 New Contract Amount Including Contract Change Order: St,174,506.60 Original Agrement Date: 5182018 Change from Original Contract Amount in Pereantages 10% Original Completion Dal= 8131/2018 . Time Extension per the CCO: 9212019- Viangetc eatedlrw:- Apprvrycd. L� Projeu Manager Ci glineer A off' Approval as to form: Cho• Manager (if Applicable) City Attorney e campenaation (time and cost) set forth in this Change Order constitutes the total compensation due to the Cantraclor, all Subcontractors, and all suppliers, for thework or change defined in this (7tangc Order, including all impacts an any unchanged work. By signing this Change Order, die Connector- acknowledges and agrees, on behalf orhimself, all Subcontmelors,and all suppliers, drat Ih upulhne l compensation includes payment far all work contained in this Change Order, plus all payment for the rnlenuption of achedulrs, extended overhead costs, delays, and all impacts, ripple ellfr u at cumulative impacts an all other work under this Contract, 77m signing ol'this Chenille Oh der shall indicate dint We Changu Order constitutes a Hill mutual accord and satisfaction for die change and that the time andfur cost under the Change Order hanislitulq the total equitable adjustment owed the Contractor, all Subcontractors, and all supplies, as a result of the change The Contractor, on trehaif m orhircif. oil Subcontractors, and supplies, agrees to waive all rights, widhout exception or reservation army kind whatsoever, to file any further claim or mquast for equitable adja tri—L army type. for any reasonably farr:sceuble cause that shall arise cut of or as a result of this Change Order or the impact afthis Change Order an the.cmainder of the work under this Contract Wc.the undersigned Contractor.lave given atefui emwalemlinn to the chengo proposed and heruby agree,,ifthis proposal is nppmved, out we will provide all equipment, famish all malaials, except' m may otherwise be noted above, and pe fool all services necessary for the work above specified, and will accept us full payment, including all ovethead and hands.11heheforc the prices we shown above Acca�/ nca Date: oo. Contractor: 8: Tide: s- Contractor does not signify accepb ma: afthis order, his attention is directed to the requirements ol'the specifications as to proceeding with the under work sod filing a written pretest within the If the Contractorme titherein specified. ere, G.J. Gentry General Engineering; Inc. 1297 W 9th Street Upland, CA 91786 909=693=3391 Lid. #A991354 DIR #1006645135 To: City Of Orange Contact: Address: Public Works Department, 300 E. Chapman Ave. Phone: (714) 744-5544 Orange, CA 92866-1591 Fax: Project Name: Cambridge Ave. Stone Drain (CO273-04) Bid Number: Project I. oration: Bid Date: 8/14/2018 tern # Item Description Estimated Quantity Unit Unit Price Total Price 700-01 Alternate Pricing: 1.00 LS $60,000.00 $60,000.00 Excavate And Install 8" VCP Sanitary Sewer Mainline (Placed Approx. 3' West Of Proposed Centerline To Avoid Conflicts Associated With 72" Stone Drain Mainline Operations). The Sole Purpose Of This Relocation Is To Accommodate AT&T's Conflicting Duct Bank. 700-02 Additional Manholes Required As Needed To Avoid AT&T 3.00 EACH $16,527.00 $49,581.00 Conflicts. Manholes Installed Per City Of Orange Std. 408 Total Bid Price: $109,581.00 Notes: • Exclusions: All permits, bonds, testing engineering, staking, fees, prevailing wage, unforeseen subsurface material, dewatering, shoring or sharing support, SWPPP implementation or mantenance, noise screening, utility relocation, structural excavation and/or bacidill, wet materials, blasting, geogrid, subdrains, drainage, wall backdrains, wall waterproofing, fencing, dust controll after hours/weekends or overtime, handling of oversized or hazardous materials, landscape relocation, traffic control/traffic engineernig, attached/soft demolition, subsurface utility demo or relocations, petromat, paving, striping, signage, construction water development/costs, street sweeping unless importing or exporting, spoils from other trades, topsoil, import or export of materials. • This proposal is good for 60 days from submittal date. • Proposal & qualifications must be accepted as a part of the contract, and so specified if a special contract forth is used. • DIR#1000045135 Uc: 991354 ACCEPTED: The above prices, specifications and conditions are satisfactory and hereby accepted. Buyer: Signature: Date of Acceptance: CONFIRMED: G.3 Gentry Engineering Inc Authorized Signature: Estimator: 8/17/2018 7:24:07 AM Page 1 of 1 To: The City of Orange Public Works Department Attn: Bryan MezaSave RE: AT&T conflict from station 9+89 thru station 16+43 Bryan, 1297 West 9th Street, Upland CA 91739 Phone: (909) 693.3391 Fax: (909) 899-4108 August 15, 2018 This letter is to notify you of the loss of production and the costs incurred caused by AXI s mismarked duct bank being in our way. We originally bid this project at a production rate of 100' LF per day pulling a shield. Due to This duct bank being located one foot inside the pipe zone.of proposed 72" RCP Storm Drain there is not enough room to utilize a shield. Therefore, hydraulic shoring must now be used slowing our production rate to approximately 32' LF per day. In addition ... the existing manhole bases are also in conflict with the proposed storm drain causing the need for additional manholes to be built. The cost incurred are reflected on Change Order #273-04 Dated 8/14/2018 Total Price: $109,581.00 Sincerely, Steve Miller Chief Estimator G.J. Gentry General Engineering, Inc.